– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 4 pm Wed 28 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 28 Oct Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 16mm), heaviest on Fri night. Mild temperatures (max 8°C on Fri afternoon, min 3°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 12°C on Mon afternoon, min 2°C on Sat night). Wind will be generally light. | ||||||||||||||||
Wed 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 1 | Monday 2 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | |  | | | | | | | |
rain shwrs | light rain | light rain | rain shwrs | rain shwrs | cloudy | light rain | heavy rain | some clouds | cloudy | some clouds | some clouds | rain shwrs | some clouds | some clouds | cloudy | some clouds | |
Cloud base (m) | 850 | 650 | 650 | 900 | 1550 | 2400 | 1750 | 600 | 650 | 750 | 1800 | 850 | 800 | 650 | 4200 | 5000 | 4900 |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.5 | 1.1 | 0.8 | 0.2 | 0.1 | — | 0.2 | 12 | — | — | — | — | 0.2 | — | — | — | — |
max °C | 5 | 3 | 5 | 6 | 4 | 7 | 8 | 5 | 5 | 7 | 5 | 6 | 7 | 5 | 10 | 12 | 9 |
min °C | 5 | 3 | 3 | 6 | 3 | 3 | 6 | 4 | 4 | 6 | 2 | 4 | 7 | 4 | 7 | 10 | 8 |
chill °C | 3 | 1 | 1 | 6 | 1 | 1 | 6 | 3 | 4 | 6 | 2 | 4 | 7 | 4 | 6 | 10 | 7 |
Freezing level m | 1250 | 1150 | 1200 | 1450 | 1500 | 1550 | 1400 | 1200 | 1350 | 1400 | 1500 | 1250 | 1400 | 2850 | 3300 | 3150 | 3400 |
 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 6:54 | — | — | 7:54 | — | — |
 | 5:54 | — | — | 5:52 | — | — | 5:51 | — | — | 5:50 | — | — | 4:47 | — | — | 5:45 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 16mm), heaviest on Fri night. Mild temperatures (max 8°C on Fri afternoon, min 3°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 12°C on Mon afternoon, min 2°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.